Why is Jiashan's social security card different from Jiaxing's?

These two cards are really different. Jiashan's social security card is local, which can be said to be old-fashioned, while Jiaxing's social security card is supervised by Ministry of Human Resources and Social Security and made by all provinces, which can also be said to be new. Now all provinces are completely replacing the old local social security cards. It won't be long before the old local cards will be completely out of use.